CN102138050A - Continuous heating furnace - Google Patents

Continuous heating furnace Download PDF

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Publication number
CN102138050A
CN102138050A CN2009801342111A CN200980134211A CN102138050A CN 102138050 A CN102138050 A CN 102138050A CN 2009801342111 A CN2009801342111 A CN 2009801342111A CN 200980134211 A CN200980134211 A CN 200980134211A CN 102138050 A CN102138050 A CN 102138050A
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CN
China
Prior art keywords
supply port
fuel
air supply
throughput direction
road
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2009801342111A
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Chinese (zh)
Inventor
上岛启利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chugai Ro Co Ltd
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Chugai Ro Co Ltd
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Filing date
Publication date
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Publication of CN102138050A publication Critical patent/CN102138050A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36Arrangements of heating devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00Combustion apparatus characterised by arrangements for air supply
    • F23C7/02Disposition of air supply not passing through burner
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/02Supplying steam, vapour, gases, or liquids

Abstract

The present invention provides a continuous heating furnace capable of efficiently burning a fuel while suppressing the occurrence of NOx. The continuous heating furnace comprises a furnace body (10) provided with a plurality of heat treatment zones arranged in the conveying direction in which a steel is conveyed from a loading side to an unloading side, a gas duct which is formed on the most upstream side in the conveying direction and into which a furnace atmosphere flowing into the furnace body in the direction opposite to the conveying direction flows, and a plurality of burners formed in the side walls (12) of the furnace body. The burner comprises an air supply passage (32) terminating at an air supply port (31) for supplying air into the furnace and fuel supply passages (34) which are disposed at an interval around the air supply port and which terminate at respective fuel supply ports (33a, 33b) for supplying a fuel into the furnace. In the burner, the fuel supply passages terminating at the respective fuel supply ports which are disposed further on the upstream side than the air supply ports in the conveying direction are tilted to the air supply port side toward the end thereof.

Description

Continuous furnace
Technical field
The present invention relates to have used to stove inner direct fuel and make the accumulation of heat of the combustion system of fuel smoulder replace the continuous furnace of pulverizing jet.
Background technology
As having used to stove inner direct fuel and having made the accumulation of heat of the combustion system of fuel smoulder replace the continuous furnace of pulverizing jet, known air supply port and the fuel supply port that has devices spaced apart to offer pulverizing jet, and air supplied with the continuous furnace that road and fuel are supplied with the road configured in parallel.Such continuous furnace suppresses the NO that burning is produced thus by air supply and fuel and make air and fuel mixes and burns in stove in stove respectively x(for example, with reference to patent documentation 1).
In addition, such continuous furnace constitutes, and arranges from the side of packing into of steel preheating section, heated zones, soaking section are set, and goes into side flow and the heat that produces thereby effectively utilize the gas medium in the stove that is heated after the section heating to the immediate shipment of preheating section.Therefore, near the side of packing in continuous furnace flue is set, so that be heated gas medium in the stove after the section heating to the side flow of packing into.
Patent documentation 1: No. 2683545 specification of Japan Patent
In the continuous furnace as described above, because gas medium in the stove is towards flue, promptly mobile in stove towards the side of packing into from extracting side out, therefore in pulverizing jet, may be blown by gas medium in the stove from being configured in the fuel of supplying with by the fuel supply port of flue side than air supply port, thereby not mix and mobile in flue with unburned state with the air of supplying with from the air supply port.Therefore, discharge unburned gas and danger, and exist fuel unnecessarily to be consumed or produce the such problem of black smoke.
Summary of the invention
The present invention proposes in view of above-mentioned existing problem, and its purpose is to provide a kind of inhibition NO xGeneration and make the continuous furnace of fuel active combustion simultaneously.
Continuous furnace of the present invention possesses: body of heater, and it is carrying the throughput direction of steel to be disposed with a plurality of heat treatment sections from the side of packing into towards extracting side out; Flue, it is arranged on the upstream side of throughput direction, flows into for the gas medium in the stove that flows to the rightabout of throughput direction in described body of heater; Pulverizing jet, it is equipped with a plurality of along throughput direction in described side wall of furnace, and described continuous furnace is characterised in that described pulverizing jet possesses: supply with the road with the air that air fed air supply port in described body of heater is a terminal; Is the fuel supply road of terminal in described air supply port on every side with this air supply port devices spaced apart configuration and with the fuel supply port of supplying with fuel in described body of heater, the described pulverizing jet of the upstream side that is arranged in throughput direction in the described pulverizing jet is that the described fuel of terminal is supplied with the road and supplied with the described terminal on road and oblique to the inclination of described air supply port towards this fuel to be configured in than described air supply port by the described fuel supply port of throughput direction upstream side.
Described continuous furnace is characterised in that, in the described pulverizing jet, the a plurality of described pulverizing jet of arranging along throughput direction from upstream side at the described heat treatment section of the upstream side that is arranged in throughput direction that comprises the described pulverizing jet of the upstream side that is arranged in throughput direction is that the described fuel of terminal is supplied with the road and supplied with the described terminal on road and oblique to the inclination of described air supply port towards this fuel to be configured in than described air supply port by the described fuel supply port of throughput direction upstream side.
Described continuous furnace is characterised in that, in the described pulverizing jet, the whole described pulverizing jet at the described heat treatment section of the upstream side that is positioned at throughput direction that comprises the described pulverizing jet of the upstream side that is arranged in throughput direction is that the described fuel of terminal is supplied with the road and supplied with the described terminal on road and oblique to the inclination of described air supply port towards this fuel to be configured in than described air supply port by the described fuel supply port of throughput direction upstream side.
Described continuous furnace is characterised in that, the fuel of supplying with from the described fuel supply port that tilts is supplied with in the mode at the mobile interflow of the air of the periphery of the air of supplying with from described air supply port and this supply.
In addition, continuous furnace of the present invention possesses: body of heater, and it is carrying the throughput direction of steel to be disposed with a plurality of heat treatment sections from the side of packing into towards extracting side out; Flue, it is arranged on the upstream side of described throughput direction, flows into for the gas medium in the stove that flows to the rightabout of described throughput direction in described body of heater; Pulverizing jet, it is equipped with a plurality of along throughput direction in described side wall of furnace, and described continuous furnace is characterised in that described pulverizing jet possesses: supply with the road with the air that air fed air supply port in described body of heater is a terminal; Is the fuel supply road of terminal in described air supply port on every side with this air supply port devices spaced apart configuration and with the fuel supply port of supplying with fuel in described body of heater, in described pulverizing jet, is that the described fuel of terminal is supplied with the road and supplied with the described terminal on road and oblique to the inclination of described air supply port towards this fuel to be configured in than described air supply port by the described fuel supply port of throughput direction upstream side, so that fuel is at the mobile interflow of the air of the periphery of the air of supplying with from described air supply port and this supply.
The invention effect
Continuous furnace of the present invention can suppress NO xGeneration and securely and effectively make simultaneously fuel combustion.
The specific embodiment
Below, with reference to accompanying drawing, describe a preferred embodiment of continuous furnace of the present invention in detail.
Fig. 1 is the longitudinal sectional view of a preferred embodiment of expression continuous furnace of the present invention.Fig. 2 is the vertical view cutaway drawing of Fig. 1.
As shown in Figures 1 and 2, in the continuous furnace 1 of present embodiment, promptly extract the extraction side 10b of steel F from promptly pack into the side 10a that packs into of steel F of an end of the length direction of roughly rectangular-shaped body of heater 10 out towards the other end, be disposed with preheating section X, heated zones Y and soaking section Z as the heat treatment section.The boundary of each heat treatment section be provided with steel F can by and with adjacent section between the partition wall 18 separated.
Since body of heater 10 in from the side 10a that packs into towards extracting side 10b out and flatly carrying steel F in the substantial middle of the above-below direction of body of heater 10, be the throughput direction of steel F towards the direction of extraction side 10b therefore from the side 10a that packs into.
In body of heater 10, be provided with the flue 20 that the gas medium in the stove that flows for the rightabout towards the throughput direction of steel F flows at the upstream side of throughput direction.Front end at this flue 20 is provided with chimney (not shown), and with the external communications of body of heater 10.
In addition, on the width of preheating section X, heated zones Y and soaking section Z, opposite disposed has a plurality of pulverizing jets 30 respectively on the sidewall of facing 12.In the example of Fig. 1, on each sidewall 12 of each section X, Y, Z, six pulverizing jets 30 respectively than the position of carrying steel F by upside and by the position of downside respectively roughly uniformly-spaced respectively being provided with three, three pulverizing jets 30 of upside and three pulverizing jets 30 of downside are respectively along throughput direction approximate horizontal ground alignment arrangements.Above-mentioned pulverizing jet 30 for make opposed and paired pulverizing jet 30 each other alternate repetition burn and the heat accumulating type pulverizing jet of accumulation of heat.
Each pulverizing jet 30 possesses: supply with road 32 with air fed air supply port 31 in body of heater 10 as the air of terminal; Supply with roads 34 in the configuration on every side of air supply port 31 and with two fuel supply ports 33 in body of heater 10, supplying with fuel as two fuel of terminal.The air supply port 31 that each pulverizing jet 30 has and two fuel supply ports 33 are configured to be positioned at the position along the throughput direction approximate horizontal of steel F, two fuel supply ports 33 dispose with air supply port 31 devices spaced apart respectively in the upstream side and the downstream of air supply port 31 on the throughput direction of steel F.And air is supplied with road 32 and is formed in the sidewall 12 from air supply port 31 approximate horizontal ground, fuel supply road 34 from fuel supply port 33 approximate horizontal be formed in the sidewall 12.In the following description, the fuel supply port 33 and the fuel supply road 34 that will be positioned at the upstream side of air supply port 31 on the throughput direction of steel F are called upstream side fuel supply port 33a and upstream side fuel supply road 34a, and the fuel supply port 33 and the fuel supply road 34 that will be positioned at the downstream are called downstream fuel supply port 33b and downstream fuel supply road 34b.
Fig. 3 is the vertical view cutaway drawing that is used to illustrate the pulverizing jet 30 that is positioned at the upstream side of throughput direction.
Supply with road 32, upstream side fuel supply road 34a and downstream fuel for air and supply with road 34b, supply with the 34a of road except being positioned at upstream side and opposed two pairs of upstream side fuel up and down, remaining supply with road be arranged to towards with the direction of the wall 12a approximate vertical of sidewall 12.And, be positioned at upstream side and opposed two pairs of upstream side fuel up and down and supply with road 34a and be arranged to towards the upstream side fuel supply port 33a that becomes terminal, promptly tilt to direction near air supply port 31 sides towards the square of body of heater 10.At this moment, the upstream side fuel angle of inclination of supplying with road 34a is set at the fuel that makes supply and collaborates and the such gradient of mixed flow at the periphery of the air of supplying with from air supply port 31 air with supply.
In the continuous furnace 1 of present embodiment, the steel F that packs into from the side 10a that packs into of body of heater 10 is carried in turn by preheating section X, heated zones Y, soaking section Z to being arranged at body of heater 10 in, and by heat-treating at the pulverizing jet 30 of each section setting to extracting side 10b conveying out.
Yet, in such continuous furnace 1, mobile towards flue 20 at the burning and gas-exhausting of heated zones Y and soaking section Z generation.Therefore, in each pulverizing jet 30, the fuel that existence is supplied with from fuel supply port 33 flows towards the direction of leaving the air of supplying with from air supply port 31 under the effect of burning and gas-exhausting, the situation of not mixing with air and flowing out towards flue 20 with burning and gas-exhausting, wherein this fuel supply port 33 is positioned at than air supply port 31 by the throughput direction upstream side, promptly towards the position in the downstream of the air-flow of the direction of flue 20.
When fuel unburned ground when flue 20 is discharged, discharge unburned gas and fuel is not only wasted in danger, also have the situation of generation black smoke.At this moment, even fuel does not mix with the air of supplying with from the air supply port 31 that is provided with as single pulverizing jet 30 and flows towards flue 20 with burning and gas-exhausting, also there is following situation: flowing at first, promptly when having other pulverizing jets 30, make fuel combustion by this pulverizing jet 30 in downstream towards the air-flow of flue 20.Yet, since be positioned at the most close flue 20 a side, be throughput direction upstream side pulverizing jet 30 at its upstream side, promptly do not have pulverizing jet 30 towards the downstream of the air-flow of flue 20, so fuel unburned and the possibility that is discharged from are than other pulverizing jet 30 height.
Therefore, in the continuous furnace 1 of present embodiment, the upstream side fuel that is positioned at the upstream side of throughput direction and opposed two pairs of pulverizing jets 30 is up and down supplied with road 34a and is arranged to tilt (in the following description to the direction near air supply port 31 sides towards the square of body of heater 10, supply with road 34a for the upstream side fuel that will tilt and supply with road 34a difference, supply with road 36 and describe) as upstream fuel with the upstream side fuel that does not tilt.Therefore, even supply with the fuel supplied with on road 36 effect current downflow by upstream fuel at the air-flow of burning and gas-exhausting, because supplying with road 36, upstream fuel tilts towards conveyance direction downstream side in advance, therefore also mix with air easily, thereby can suppress unburned and towards the generation of the fuel of flue 20 from 31 supplies of air supply port.And at this moment, the inclination that preferred upstream fuel is supplied with road 36 is set at inclination as follows, that is, the fuel that makes supply is when the periphery of the air of supplying with from air supply port 31 collaborates, and fuel mixes and flows along air.
For example, enter from the center of the air of air supply port 31 supplies if be set at by supplying with the fuel of supplying with on road 36 towards the upstream fuel that conveyance direction downstream side tilts in advance, then flame temperature must uprise under the high burning of oxygen concentration, thus NO xThe generation degree may uprise.Therefore, upstream fuel as present embodiment is supplied with shown in the road 36, mix flow such inclination at the periphery of the air of supplying with from air supply port 31 along air by the fuel that is set at supply, can realize the diffusion smoulder when oxygen concentration is low, suppress NO xThe generation degree.
Fig. 4 is the vertical view cutaway drawing that is used to illustrate the continuous furnace of first variation.Fig. 5 is the vertical view cutaway drawing that is used to illustrate the continuous furnace of second variation.
In the above-described embodiment, the upstream side fuel that the upstream side that will be positioned at throughput direction and opposed two pairs of pulverizing jets 30 up and down have been described is supplied with road 34a (36) and is arranged to side towards body of heater 10, promptly towards the upstream side fuel supply port 33a that becomes terminal and to the example that tilts near the direction of air supply port 31 sides, but also can be for example as shown in Figure 4, make to be positioned at upstream side in the whole pulverizing jets 30 that in section (the being the preheating section) X of the upstream side of throughput direction, are provided with and to supply with road 34a (36) along many upstream side fuel that pulverizing jet 30 is had that throughput direction is arranged and tilt to direction near air supply port 31 sides towards the square of body of heater 10 at this.Especially replacing for accumulation of heat under the situation of pulverizing jet, as shown in Figure 6, to on the stove cross direction, burn and exhaust with the pulverizing jet 30 composition groups of left side wall 12 by opposed right side wall 12, this situation makes burning carry out in the left and right sides staggeredly, make about temperature impartial, therefore starting at second later pulverizing jet 30 from upstream can become the pulverizing jet 30 of the upstream of burning, thereby above-mentioned " many to pulverizing jet 30 " can be two that arrange from the pulverizing jet 30 of upstream along throughput direction, or the plural pulverizing jet 30 till the pulverizing jet 30 of the upstream that can become fired state.In addition, as shown in Figure 5, the upstream side fuel that whole pulverizing jets 30 had that the preheating section X that can make at the upstream side of throughput direction is provided with is supplied with road 34a (36) and is tilted to the direction near air supply port 31 sides towards the interior side of body of heater 10.
In addition, in the present embodiment, illustrated that each pulverizing jet 30 has air supply port 31 and two fuel supply ports 33, and they are positioned at along the position of the throughput direction approximate horizontal of steel F, and two fuel supply port 33a, 33b are configured in the upstream side of air supply port 31 and the example in downstream respectively.Therefore, the fuel supply port 33 that tilts towards the interior side of body of heater 10 and to the direction near air supply port 31 sides is only for being positioned on throughput direction than the fuel supply port 33 of air supply port 31 by a side of upstream side, but is not limited to this.For example, surround under the situation of air supply port 31 at the fuel supply port of being arranged to more than three 33, it is oblique to 31 inclinations of air supply port to make as follows upstream side fuel supply with road 34a, and wherein this upstream side fuel is supplied with road 34a to be positioned at than air supply port 31 by the several of the fuel supply port 33 of upstream side or to be positioned at than air supply port 31 be terminal by whole fuel supply port 33 of upstream side.At this moment, the 33c of edge portion that is meant the conveyance direction downstream side of fuel supply port 33 for example by the fuel supply port 33 of upstream side than air supply port 31 is positioned at the such fuel supply port 33 (with reference to Fig. 7) of upstream side than the 31a of edge portion of the conveyance direction downstream side of air supply port 31.In addition, can make also that to be with as follows fuel supply port 33 that the fuel of terminal is supplied with road 34 all oblique to 31 inclinations of air supply port, this fuel supply port 33 is configured in the fuel supply port 33 by upstream side than the 31a of edge portion in the downstream of air supply port 31 for a part, promptly, exist the fuel of supplying with from this fuel supply port 33 under the effect of burning and gas-exhausting, may not mix and the fuel supply port 33 of this possibility of not burning with the air of supplying with from air supply port 31 according to experiment or experience.
Description of drawings
Fig. 1 is the longitudinal sectional view of a preferred embodiment of expression continuous furnace of the present invention.
Fig. 2 is the vertical view cutaway drawing of Fig. 1.
Fig. 3 is the vertical view cutaway drawing that is used to illustrate the pulverizing jet of the upstream side that is positioned at throughput direction.
Fig. 4 is the vertical view cutaway drawing that is used to illustrate the continuous furnace of first variation.
Fig. 5 is the vertical view cutaway drawing that is used to illustrate the continuous furnace of second variation.
Fig. 6 is the key diagram that the explanation accumulation of heat replaces the burning form of pulverizing jet.
Fig. 7 is the sketch that the position of air supply port and the fuel supply port of the expression pulverizing jet that is applicable to continuous furnace of the present invention concerns.
Symbol description:
1 continuous furnace
10 bodies of heater
The 10a side of packing into
10b extracts side out
12 sidewalls
The 12a wall
18 partition walls
20 flues
30 pulverizing jets
31 air supply ports
The conveyance direction downstream side edge portion of 31a air supply port
32 air are supplied with the road
33 fuel supply ports
33a upstream side fuel supply port
33b downstream fuel supply port
The conveyance direction downstream side edge portion of 33c upstream side fuel supply port
34 fuel are supplied with the road
34a upstream side fuel is supplied with the road
34b downstream fuel is supplied with the road
36 upstream fuel are supplied with the road
The F steel
X preheating section
The Y heated zones
Z soaking section

Claims (5)

1. continuous furnace, it possesses:
Body of heater, it is carrying the throughput direction of steel to be disposed with a plurality of heat treatment sections from the side of packing into towards extracting side out;
Flue, it is arranged on the upstream side of throughput direction, flows into for the gas medium in the stove that flows to the rightabout of throughput direction in described body of heater;
Pulverizing jet, it is equipped with a plurality of along throughput direction in described side wall of furnace,
Described continuous furnace is characterised in that,
Described pulverizing jet possesses: supply with the road with the air that air fed air supply port in described body of heater is a terminal; Is the fuel supply road of terminal in described air supply port on every side with this air supply port devices spaced apart configuration and with the fuel supply port of supplying with fuel in described body of heater,
The described pulverizing jet of the upstream side that is arranged in throughput direction in the described pulverizing jet is that the described fuel of terminal is supplied with the road and supplied with the described terminal on road and oblique to the inclination of described air supply port towards this fuel to be configured in than described air supply port by the described fuel supply port of throughput direction upstream side.
2. continuous furnace according to claim 1 is characterized in that,
In the described pulverizing jet, the a plurality of described pulverizing jet of arranging along throughput direction from upstream side at the described heat treatment section of the upstream side that is arranged in throughput direction that comprises the described pulverizing jet of the upstream side that is arranged in throughput direction is that the described fuel of terminal is supplied with the road and supplied with the described terminal on road and oblique to the inclination of described air supply port towards this fuel to be configured in than described air supply port by the described fuel supply port of throughput direction upstream side.
3. continuous furnace according to claim 1 is characterized in that,
In the described pulverizing jet, the whole described pulverizing jet at the described heat treatment section of the upstream side that is positioned at throughput direction that comprises the described pulverizing jet of the upstream side that is arranged in throughput direction is that the described fuel of terminal is supplied with the road and supplied with the described terminal on road and oblique to the inclination of described air supply port towards this fuel to be configured in than described air supply port by the described fuel supply port of throughput direction upstream side.
4. according to each described continuous furnace in the claim 1~3, it is characterized in that,
The fuel of supplying with from the described fuel supply port that tilts is supplied with in the mode at the mobile interflow of the air of the periphery of the air of supplying with from described air supply port and this supply.
5. continuous furnace, it possesses:
Body of heater, it is carrying the throughput direction of steel to be disposed with a plurality of heat treatment sections from the side of packing into towards extracting side out;
Flue, it is arranged on the upstream side of described throughput direction, flows into for the gas medium in the stove that flows to the rightabout of described throughput direction in described body of heater;
Pulverizing jet, it is equipped with a plurality of along throughput direction in described side wall of furnace,
Described continuous furnace is characterised in that,
Described pulverizing jet possesses: supply with the road with the air that air fed air supply port in described body of heater is a terminal; Is the fuel supply road of terminal in described air supply port on every side with this air supply port devices spaced apart configuration and with the fuel supply port of supplying with fuel in described body of heater,
In described pulverizing jet, is that the described fuel of terminal is supplied with the road and supplied with the described terminal on road and oblique to the inclination of described air supply port towards this fuel to be configured in than described air supply port by the described fuel supply port of throughput direction upstream side, so that fuel is at the mobile interflow of the air of the periphery of the air of supplying with from described air supply port and this supply.
CN2009801342111A 2008-09-04 2009-09-02 Continuous heating furnace Pending CN102138050A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008227661A JP4860676B2 (en) 2008-09-04 2008-09-04 Continuous heating furnace
JP2008-227661 2008-09-04
PCT/JP2009/065298 WO2010026979A1 (en) 2008-09-04 2009-09-02 Continuous heating furnace

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CN102138050A true CN102138050A (en) 2011-07-27

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JP (1) JP4860676B2 (en)
KR (1) KR101197880B1 (en)
CN (1) CN102138050A (en)
TW (1) TWI378213B (en)
WO (1) WO2010026979A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105659019A (en) * 2013-12-27 2016-06-08 三菱日立电力系统株式会社 Low-noise pressure reduction device and combustion device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6159638B2 (en) * 2013-03-14 2017-07-05 新日鐵住金株式会社 heating furnace

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07103428A (en) * 1993-10-06 1995-04-18 Nippon Steel Corp Oxygen burner
WO1995020743A1 (en) * 1994-01-31 1995-08-03 Gas Research Institute, Inc. Temperature controlled low emissions burner
JPH08291328A (en) * 1995-04-21 1996-11-05 Nippon Steel Corp Continuous heating apparatus
JPH08291327A (en) * 1995-04-19 1996-11-05 Nippon Steel Corp Continuous heating apparatus
US6036476A (en) * 1996-04-09 2000-03-14 Toyota Jidosha Kabushiki Kaisha Combustion apparatus
CN2733181Y (en) * 2004-07-20 2005-10-12 德英 Heat accumulation type burning nozzle
CN2828573Y (en) * 2005-05-10 2006-10-18 李淑琴 Self thermal storage temp regulating burner

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168033U (en) * 1974-11-26 1976-05-29
JPS5168033A (en) * 1974-12-09 1976-06-12 Mitsubishi Heavy Ind Ltd Gendokino kakaitenboshisochi
JPS61137650A (en) * 1984-12-11 1986-06-25 Mitsubishi Heavy Ind Ltd Method for regenerating mold
JPH0324592Y2 (en) * 1985-02-13 1991-05-29
JP3282944B2 (en) * 1994-07-18 2002-05-20 トヨタ自動車株式会社 Low NOx burner
JP4237842B2 (en) * 1998-03-05 2009-03-11 新日本製鐵株式会社 Billet continuous heating device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07103428A (en) * 1993-10-06 1995-04-18 Nippon Steel Corp Oxygen burner
WO1995020743A1 (en) * 1994-01-31 1995-08-03 Gas Research Institute, Inc. Temperature controlled low emissions burner
JPH08291327A (en) * 1995-04-19 1996-11-05 Nippon Steel Corp Continuous heating apparatus
JPH08291328A (en) * 1995-04-21 1996-11-05 Nippon Steel Corp Continuous heating apparatus
US6036476A (en) * 1996-04-09 2000-03-14 Toyota Jidosha Kabushiki Kaisha Combustion apparatus
CN2733181Y (en) * 2004-07-20 2005-10-12 德英 Heat accumulation type burning nozzle
CN2828573Y (en) * 2005-05-10 2006-10-18 李淑琴 Self thermal storage temp regulating burner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105659019A (en) * 2013-12-27 2016-06-08 三菱日立电力系统株式会社 Low-noise pressure reduction device and combustion device
US10352339B2 (en) 2013-12-27 2019-07-16 Mitsubishi Hitachi Power Systems, Ltd. Low-noise decompression device and combustion device

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JP4860676B2 (en) 2012-01-25
JP2010060226A (en) 2010-03-18
TW201015028A (en) 2010-04-16
KR20110050661A (en) 2011-05-16
TWI378213B (en) 2012-12-01
KR101197880B1 (en) 2012-11-05

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Application publication date: 20110727